CVE-2026-48864— Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client ExecutionAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | any | affected |
| Red Hat | Red Hat Enterprise Linux 7 | any | affected |
| Red Hat | Red Hat Enterprise Linux 8 | any | affected |
| Red Hat | Red Hat Enterprise Linux 9 | any | affected |
| Red Hat | Red Hat Hardened Images | any | affected |
| Red Hat | Red Hat OpenShift Container Platform 4 | any | affected |
| Red Hat | Red Hat Satellite 6 | any | affected |
| Red Hat | Red Hat Update Infrastructure 4 for Cloud Providers | any | affected |
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I. Basic Information for CVE-2026-48864
Vulnerability Information
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Vulnerability Title
Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within `.solv` files due to insufficient input validation. An attacker can provide a specially crafted `.solv` file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Red Hat | Red Hat Hardened Images | - | cpe:/a:redhat:hummingbird:1 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | - | cpe:/a:redhat:openshift:4 | |
| Red Hat | Red Hat Satellite 6 | - | cpe:/a:redhat:satellite:6 | |
| Red Hat | Red Hat Update Infrastructure 4 for Cloud Providers | - | cpe:/a:redhat:rhui:4::el8 |
II. Public POCs for CVE-2026-48864
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-48864 (2)
Same Patch Batch · Red Hat · 2026-05-26 · 7 CVEs total
| CVE-2026-7374 | 9.9 CRITICAL | Kubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink foll |
| CVE-2026-4480 | 8.5 HIGH | Samba: samba: remote code execution in printing subsystem via unescaped job description |
| CVE-2026-42013 | 8.2 HIGH | Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name |
| CVE-2026-5260 | 8.2 HIGH | Gnutls: gnutls: information disclosure via heap overread in rsa key exchange |
| CVE-2026-42012 | 7.1 HIGH | Gnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans |
| CVE-2026-42015 | 5.3 MEDIUM | Gnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 10
- CVE-2026-1933
Samba: missing access check on reparse point operations - CVE-2026-2340
Samba: vfs_worm does not block directory modification - CVE-2026-3012
Samba: group policy certificate enrollment uses http:// with - CVE-2026-4480
Samba: samba: remote code execution in printing subsystem vi - CVE-2026-9149
Libsolv: heap buffer overflow in libsolv repo_add_solv via n
Same vendor: Red Hat
- CVE-2026-9704
Keycloak: keycloak: privilege escalation due to oversized su - CVE-2026-1933
Samba: missing access check on reparse point operations - CVE-2026-2340
Samba: vfs_worm does not block directory modification - CVE-2026-9689
Keycloak: org.keycloak.protocol.oidc: http parameter polluti - CVE-2026-3012
Samba: group policy certificate enrollment uses http:// with
V. Comments for CVE-2026-48864
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